US9232212B2ActiveUtilityA1
Method for reducing crosstalk of stereoscopic image
Est. expiryJan 15, 2033(~6.5 yrs left)· nominal 20-yr term from priority
H04N 13/106G06T 19/20G02B 30/00H04N 13/04G02B 27/22H04N 13/0007G02B 30/22H04N 13/30
50
PatentIndex Score
0
Cited by
12
References
14
Claims
Abstract
A stereoscopic display method includes generating a left-eye crosstalk parameter according to left-eye image data and right-eye image data; generating a right-eye crosstalk parameter according to the left-eye image data and the right-eye image data; generating calibrated left-eye image data according to the left-eye image data, the right-eye image data, the left-eye crosstalk parameter, and the right-eye crosstalk parameter; generating calibrated right-eye image data according to the left-eye image data, the right-eye image data, the left-eye crosstalk parameter, and the right-eye crosstalk parameter; and displaying the calibrated left-eye image data and the calibrated right-eye image data on a display apparatus.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1. A stereoscopic display method, comprising:
generating a left-eye crosstalk parameter according to left-eye image data and right-eye image data;
generating a right-eye crosstalk parameter according to the left-eye image data and the right-eye image data;
generating calibrated left-eye image data by dividing a difference between the left-eye image data and a product of the right-eye image data and the left-eye crosstalk parameter by a difference between 1 and a product of the left-eye crosstalk parameter and the right-eye crosstalk parameter;
generating calibrated right-eye image data by dividing a difference between the right-eye image data and a product of the left-eye image data and the right-eye crosstalk parameter by a difference between 1 and a product of the left-eye crosstalk parameter and the right-eye crosstalk parameter; and
displaying the calibrated left-eye image data and the calibrated right-eye image data on a display apparatus.
2. The method of claim 1 , wherein:
generating the left-eye crosstalk parameter according to the left-eye image data and the right-eye image data comprises:
generating the left-eye crosstalk parameter according to a left-eye grey level crosstalk look up table, the left-eye image data, and the right-eye image data, wherein the left-eye grey level crosstalk look up table comprises left-eye crosstalk parameters caused by the right-eye image data when the display apparatus is viewed by a left eye; and
generating the right-eye crosstalk parameter according to the left-eye image data and the right-eye image data comprises:
generating the right-eye crosstalk parameter according to a right-eye grey level crosstalk look up table, the left-eye image data, and the right-eye image data, wherein the right-eye grey level crosstalk look up table lists right-eye crosstalk parameters caused by the left-eye image data when the display apparatus is viewed by a right eye.
3. The method of claim 1 , wherein:
generating the left-eye crosstalk parameter according to the left-eye image data and the right-eye image data comprises:
displaying a first left-eye image with a first gray level, and displaying a first right-eye image with the first gray level;
measuring first left-eye brightness received by a left eye when displaying the first left-eye image and displaying the first right-eye image;
displaying the first left-eye image with the first gray level, and displaying a second right-eye image with a second gray level;
measuring second left-eye brightness received by the left eye when displaying the first left-eye image and displaying the second right-eye image;
displaying a second left-eye image with the second gray level, and displaying the second right-eye image with the second gray level;
measuring third left-eye brightness received by the left eye when displaying the second left-eye image and displaying the second right-eye image; and
generating the left-eye crosstalk parameter according to the first left-eye brightness, the second left-eye brightness, and the third left-eye brightness; and
generating the right-eye crosstalk parameter according to the left-eye image data and the right-eye image data comprises:
displaying the first left-eye image with the first gray level, and displaying the first right-eye image with the first gray level;
measuring first right-eye brightness received by a right eye when displaying the first left-eye image and displaying the first right-eye image;
displaying the first left-eye image with the first gray level, and displaying the second right-eye image with the second gray level;
measuring second right-eye brightness received by the right eye when displaying the first left-eye image and displaying the second right-eye image;
displaying the second left-eye image with the second gray level and displaying the second right-eye image with the second gray level;
measuring third right-eye brightness received by the right eye when displaying the second left-eye image and displaying the second right-eye image; and
generating the right-eye crosstalk parameter according to the first right-eye brightness, the second right-eye brightness, and the third right-eye brightness;
wherein the first gray level corresponds to the left-eye image data, and the second gray level corresponds to the right-eye image data.
4. The method of claim 3 , wherein:
generating the left-eye crosstalk parameter according to the first left-eye brightness, the second left-eye brightness, and the third left-eye brightness comprises:
generating an absolute value of a ratio of a difference between the first left-eye brightness and the second left-eye brightness and a difference between the first left-eye brightness and the third left-eye brightness; and
generating the right-eye crosstalk parameter according to the first right-eye brightness, the second right-eye brightness, and the third right-eye brightness comprises:
generating an absolute value of a ratio of a difference between the second right-eye brightness and the third right-eye brightness and a difference between the first right-eye brightness and the third right-eye brightness.
5. The method of claim 3 , wherein:
generating the left-eye crosstalk parameter X L according to the first left-eye brightness, the second left-eye brightness, and the third left-eye brightness comprises:
X
L
=
L
aa
-
L
ab
L
aa
-
L
bb
,
wherein X L is the left-eye crosstalk parameter, L aa is the first left-eye brightness, L ab is the second left-eye brightness, L bb is the third left-eye brightness; and
generating the right-eye crosstalk parameter X R according to the first right-eye brightness, the second right-eye brightness, and the third right-eye brightness comprises:
X
R
=
R
ab
-
R
bb
R
aa
-
R
bb
,
wherein X R is the right-eye crosstalk parameter, R aa is the first right-eye brightness, R ab is the second right-eye brightness, R bb is the third right-eye brightness.
6. The method of claim 1 , further comprising:
setting the left-eye crosstalk parameter as a threshold if the left-eye crosstalk parameter is not smaller than the threshold; and
setting the right-eye crosstalk parameter as the threshold if the right-eye crosstalk parameter is not smaller than the threshold.
7. The method of claim 1 , further comprising:
receiving the left-eye image data and the right-eye image data of an image frame, the image frame comprising a plurality of image blocks.
8. A stereoscopic display method, comprising:
receiving image data of an image frame, the image frame comprising a plurality of image blocks;
in each of the image blocks,
generating a left-eye crosstalk parameter according to left-eye image data of the image block and right-eye image data of the image block;
generating a right-eye crosstalk parameter according to the left-eye image data and the right-eye image data;
generating calibrated left-eye image data of the image block by dividing a difference between the left-eye image data and a product of the right-eye image data and the left-eye crosstalk parameter by a difference between 1 and a product of the left-eye crosstalk parameter and the right-eye crosstalk parameter; and
generating calibrated right-eye image data of the image block by dividing a difference between the right eye image data and a product of the left-eye image data and the right-eye crosstalk parameter by a difference between 1 and a product of the left-eye crosstalk parameter and the right-eye crosstalk parameter; and
displaying calibrated left-eye image data and calibrated right-eye image data of the image blocks on a display apparatus.
9. The method of claim 8 , wherein:
each of the image blocks corresponds to a left-eye grey level crosstalk look up table and a right-eye grey level crosstalk look up table, the left-eye grey level crosstalk look up table lists left-eye crosstalk parameters caused by the right-eye image data when the display apparatus is viewed by a left eye, and the right-eye grey level crosstalk look up table lists right-eye crosstalk parameters caused by the left-eye image data when the display apparatus is viewed by a right eye;
generating the left-eye crosstalk parameter according to the left-eye image data and the right-eye image data comprises:
generating the left-eye crosstalk parameter according to a corresponding left-eye grey level crosstalk look up table, the left-eye image data, and the right-eye image data; and
generating the right-eye crosstalk parameter according to the left-eye image data and the right-eye image data comprises:
generating the right-eye crosstalk parameter according to a corresponding right-eye grey level crosstalk look up table, the left-eye image data, and the right-eye image data.
10. The method of claim 8 , wherein:
generating the left-eye crosstalk parameter according to the left-eye image data and the right-eye image data comprises:
displaying a first left-eye image with a first gray level and a first right-eye image with the first gray level;
measuring first left-eye brightness received by a left eye when displaying the first left-eye image and the first right-eye image;
displaying the first left-eye image with the first gray level and a second right-eye image with a second gray level;
measuring second left-eye brightness received by the left eye when displaying the first left-eye image and the second right-eye image;
displaying a second left-eye image with the second gray level and a second right-eye image with the second gray level;
measuring third left-eye brightness received by the left eye when displaying the second left-eye image and the second right-eye image; and
generating the left-eye crosstalk parameter according to the first left-eye brightness, the second left-eye brightness, and the third left-eye brightness; and
generating the right-eye crosstalk parameter according to the left-eye image data and the right-eye image data comprises:
displaying the first left-eye image with the first gray level and the first right-eye image with the first gray level;
measuring first right-eye brightness received by a right eye when displaying the first left-eye image and the first right-eye image;
displaying the first left-eye image with the first gray level and the second right-eye image with the second gray level;
measuring second right-eye brightness received by the right eye when displaying the first left-eye image and the second right-eye image;
displaying the second left-eye image with the second gray level and the second right-eye image with the second gray level;
measuring third right-eye brightness received by the right eye when displaying the second left-eye image and the second right-eye image; and
generating the right-eye crosstalk parameter according to the first right-eye brightness, the second right-eye brightness, and the third right-eye brightness;
wherein the first gray level corresponds to the left-eye image data, and the second gray level corresponds to the right-eye image data.
11. The method of claim 10 , wherein:
generating the left-eye crosstalk parameter according to the first left-eye brightness, the second left-eye brightness, and the third left-eye brightness comprises:
generating an absolute value of a ratio of a difference between the first left-eye brightness and the second left-eye brightness and a difference between the first left-eye brightness and the third left-eye brightness; and
generating the right-eye crosstalk parameter according to the first right-eye brightness, the second right-eye brightness, and the third right-eye brightness comprises:
generating an absolute value of a ratio of a difference between the second right-eye brightness and the third right-eye brightness and a difference between the first right-eye brightness and the third right-eye brightness.
12. The method of claim 10 , wherein:
generating the left-eye crosstalk parameter according to the first left-eye brightness, the second left-eye brightness, and the third left-eye brightness comprises:
X
L
=
L
aa
-
L
ab
L
aa
-
L
bb
,
wherein X L is the left-eye crosstalk parameter, L aa is the first left-eye brightness, L ab is the second left-eye brightness, L bb is the third left-eye brightness; and
generating the right-eye crosstalk parameter according to the first right-eye brightness, the second right-eye brightness, and the third right-eye brightness comprises:
X
R
=
R
ab
-
R
bb
R
aa
-
R
bb
,
wherein X R is the right-eye crosstalk parameter, R aa is the first right-eye brightness, R ab is the second right-eye brightness, R bb is the third right-eye brightness.
13. The method of claim 8 , further comprising:
setting the left-eye crosstalk parameter to have a value of a threshold if the left-eye crosstalk parameter is greater than the threshold; and/or
setting the right-eye crosstalk parameter to have the value of the threshold if the right-eye crosstalk parameter is greater than the threshold.
14. The method of claim 13 , wherein:
the left-eye image data and the right-eye image data are between a lower bound and an upper bound.Cited by (0)
No later patents cite this yet.
References (0)
No backward citations on record.